GCN Circular 11234
Subject
GRB 100901A: ISON-NM optical observations
Date
2010-09-06T17:30:05Z (14 years ago)
From
Leonid Elenin at ISON <l.elenin@gmail.com>
L. Elenin, I. Molotov (ISON) and A. Pozanenko (IKI) report on behalf of
larger
GRB follow-up collaboration:
We continue observation of the Swift GRB 100814A (Immler et al. GCN Circ.
11159)
with 0.45-m telescope of ISON-NM observatory on Sep. 04 (UT) 09:04:35 -
10:06:19,
Sep. 05 (UT) 08:45:52 - 09:50:20 and Sep. 06 (UT) 09:36:57 - 11:14:22.
The afterglow (Immler et al., GCN 11159; Guidorzi et al., GCN 11160; Ivanov
et al.,
GCN 11161; Klunko et al., GCN 11162) is well detected on stacked images
for three epochs.
Preliminary photometry of unfiltered image against USNO-B1.0 1127-0027229,
assuming R=16.16 is following:
T-T0 filter exposure mag. mag. error
--------------------------------------------------------------
2.8336 W 12x300 19.78 +/- 0.25
3.8206 W 12x300 20.38 +/- 0.20
4.8700 W 20x300 20.97 +/- 0.22
--------------------------------------------------------------
The images of GRB100901A is available at:
http://www.spaceobs.org/images/GRB1000901A-3epochs.jpg
